I keep it under my bed. You can put it on Ebay but you probably won't get much for it and it might take some time to actually sell.
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I'm not looking to make money, I just don't want to trash things that some might want or are useful older parts.
Probably just Ebay for cheap. See if you can find similar hardware and match the price or undercut to try and shift it but in the year 2023 I can't think many people will want a floppy drive.
I recently sold (essentially gave away for €1) some 15+ years old AMD parts (MB, CPU, cooler) on Ebay. If you don't mind the effort of posting it on Ebay, packaging and shipping, then go for it.
this isnt the place to ask for help
Put it up on your local classifieds site for free, with the stipulation that it all comes as a bundle. It's not worth the effort to sell but at least this way it doesn't go in the trash.
There might be places to give old hardware to near you, but this is kind of local in nature
Sell or keep as backup. People buy anything on ebay.